# NEET Physics Wave Optics Questions Solved

In the Young's double slit experiment, if the phase difference between the two waves interfering at a point is ϕ, the intensity at that point can be expressed by the expression

(1) $I=\sqrt{{A}^{2}+{B}^{2}{\mathrm{cos}}^{2}\varphi }$

(2) $I=\frac{A}{B}\mathrm{cos}\varphi$

(3) $I=A+B\mathrm{cos}\frac{\varphi }{2}$

(4) $I=A+B\mathrm{cos}\varphi$

Where A and B depend upon the amplitudes of the two waves.

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